export const getUuid = () => {
  let s = [];
  let hexDigits = '0123456789abcdef';
  for (let i = 0; i < 36; i++) {
    let idx = Math.floor(Math.random() * 0x10);
    s[i] = hexDigits.slice(idx, idx + 1);
  }
  s[14] = '4'; // bits 12-15 of the time_hi_and_version field to 0010
  s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
  s[8] = s[13] = s[18] = s[23] = '-';

  let uuid = s.join('');
  return uuid;
};
